[PATCH] mips/ftrace: Fix stack backtrace in unwind_stack_by_address()

ter is the address of ftrace_call+8. "ftrace_call" is the global symbol, and return one when the get_frame_info() is called. Signed-off-by: YuanJunQing --- arch/mips/kernel/process.c | 20 ++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/arch/mips/ke

Re: [PATCH] function:stacktrace/mips: Fix function:stacktrace for mips

在 2020/6/4 上午9:17, Maciej W. Rozycki 写道: > On Fri, 29 May 2020, WANG Xuerui wrote: > >> On 2020/5/29 17:29, yuanjunqing wrote: >> >>>> diff --git a/arch/mips/kernel/mcount.S b/arch/mips/kernel/mcount.S >>>> index cff52b283e03..cd5545764e5f 100644 >&

Re: [PATCH] function:stacktrace/mips: Fix function:stacktrace for mips

May I ask if you have received this email. 在 2020/5/28 下午8:36, YuanJunQing 写道: > ftrace_call as global symbol in ftrace_caller(), this > will cause function:stacktrace can not work well. > i.e. echo do_IRQ:stacktrace > set_ftrace_filte > > Signed-off-by: YuanJunQing > --

Re: [PATCH] MIPS: Fix IRQ tracing when call handle_fpe() and handle_msa_fpe()

sorry! 在 2020/5/28 下午8:35, YuanJunQing 写道: > Register "a1" is unsaved in this function, > when CONFIG_TRACE_IRQFLAGS is enabled, > the TRACE_IRQS_OFF macro will call trace_hardirqs_off(), > and this may change register "a1". > The changed register "a

[PATCH] function:stacktrace/mips: Fix function:stacktrace for mips

ftrace_call as global symbol in ftrace_caller(), this will cause function:stacktrace can not work well. i.e. echo do_IRQ:stacktrace > set_ftrace_filte Signed-off-by: YuanJunQing --- arch/mips/kernel/mcount.S | 13 +++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/a

[PATCH] MIPS: Fix IRQ tracing when call handle_fpe() and handle_msa_fpe()

Register "a1" is unsaved in this function, when CONFIG_TRACE_IRQFLAGS is enabled, the TRACE_IRQS_OFF macro will call trace_hardirqs_off(), and this may change register "a1". The changed register "a1" as argument will be send to do_fpe() and do_msa_fpe(

[PATCH] MIPS: Fix IRQ tracing when call handle_fpe() and handle_msa_fpe()

Register "a1" is unsaved in this function, when CONFIG_TRACE_IRQFLAGS is enabled, the TRACE_IRQS_OFF macro will call trace_hardirqs_off(), and this may change register "a1". The changed register "a1" as argument will be send to do_fpe() and do_msa_fpe(

Re: [PATCH] MIPS: Fix IRQ tracing when call handle_fpe()

yes, I will re-send email for this patch. 在 2020/5/26 下午9:04, Thomas Bogendoerfer 写道: > On Tue, May 26, 2020 at 03:07:16PM +0800, yuanjunqing wrote: >> 在 2020/5/25 下午4:42, Thomas Bogendoerfer 写道: >>> On Mon, May 25, 2020 at 11:31:23AM +0800, YuanJunQing wrote: >>>>

Re: [PATCH] MIPS: Fix IRQ tracing when call handle_fpe()

在 2020/5/25 下午4:42, Thomas Bogendoerfer 写道: > On Mon, May 25, 2020 at 11:31:23AM +0800, YuanJunQing wrote: >> Register "a1" is unsaved in this function, >> when CONFIG_TRACE_IRQFLAGS is enabled, >> the TRACE_IRQS_OFF macro will call trace_hardirqs_off(), >&

[PATCH] MIPS: Fix IRQ tracing when call handle_fpe()

his may kill the task. Signed-off-by: YuanJunQing --- arch/mips/kernel/genex.S | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index 8236fb291e3f..956a76429773 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/ker